Helmin Parida Zebua, Etti Sartina Siregar, Nursahara Pasaribu, Tri Harsono
Sicike-cike Nature Tourism Park in Dairi Regency, North Sumatra, is recognized as a potential habitat for mosses and liverworts. Nevertheless, the occurrence of Radulaceae species within this protected area has not previously been documented. This study aimed to identify Radulaceae species occurring in Sicike-cike Nature Tourism Park. Fieldwork was conducted in June 2023 through exploratory sampling along established trails in Sicike-cike Nature Tourism Park. The collected specimens were subsequently examined morphologically to achieve species level identification. A total of nine species of Radulaceae were identified, including two new records for Sumatra: Radula japonica and Radula verrucosa. Members of the Radulaceae family in this area predominantly grew epiphytically on tree trunks, with some occurring on decaying wood, distributed at elevations ranging from 1377 to 1415 m above sea level. The findings expand the known distribution of Radulaceae in North Sumatra and highlight Sicike-cike Nature Tourism Park as an important site for liverwort diversity, particularly for underexplored taxa. © Published under licence by IOP Publishing Ltd.
Doctoral Program in Biological Sciences, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan, Indonesia; Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan, Indonesia; Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Indonesia
